Caracal is Helping Staff and Students

Protect the indoor air in schools, today and for years to come.

Carcal is working with schools to help provide students and teachers with a healthy indoor environment with the FiterQueen® Defender®.

FilterQueen has an A+ rating from the Better Business Bureau
Helping solve indoor air problems since 1928
With products built in Cleveland, Ohio

"Consider portable air cleaners that use high-efficiency particulate air (HEPA) filters to enhance air cleaning wherever possible, especially in higher-risk areas such as a nurse’s office or sick/isolation room."


FilterQueen® Defender Air Purifier

The Defender Portable Room Air Purifier uses its proven technology to create a cleaner, healthier indoor environment that is protected from harmful pollutants.  

Why choose the FilterQueen Defender Air Purifier?

✓ FREE 1-year supply of filtration included

✓ Lifetime perpetual warranty

✓ Built in the USA

✓ 3x better than HEPA filtration

✓ Used in hospitals

✓ Recognized as a Class II Medical Device

✓ Quiet, 24-hour operation

✓ Ozone-free



Built in the USA

Built in Cleveland, Ohio by a company in business for over 90 years.


Lifetime Perpetual Warranty

Backed by a Lifetime Perpetual Warranty, the Defender is literally the last air purifier you'll need.


Class II Medical Device

Recognized by the FDA as a Class II Medical Device and proven effective through laboratory testing.


How small is 0.1 mircon?

3X better-than-HEPA filtration


Medi-Filter Cartridge

Provides three times better-than-HEPA filtration to remove pollutants such as bacteria, viruses, dust, dust mites, pollen and mold spores.

The Defender® meets the following EPA guidelines

No Ozone

(Ozone is harmful to the environment)

No UV Light

(UV light is ineffective, costly and dangerous)

Effective Filtration Capability

(3X better-than-HEPA)

How to use CDC building recommendations in your setting

Opening windows, using portable air cleaners, and improving building-wide filtration are ways to increase ventilation in your school.

While implementing ventilation strategies, be sure to continue to take regular precautions to keep young children safe, such as using fans with covers and windows with screens.

Good ventilation is important, especially in areas where students may not be able to wear masks. If students eat in a cafeteria, use methods such as opening windows, maximizing filtration as much as the system will allow and using portable HEPA air cleaners.

Proudly protecting students and teachers in over half the states in the US.
Here are just a few:

Let us help protect your staff and students.

Defender Tech Specs


17.5" height x 12.25" diameter


12 pounds

Speed Controls:


Air Outlet:

360˚ Pure Top Release


Brushless high efficiency motor
(100,000 hours expected life)
120V / 60Hz / 85W


0.90 (high)
0.43 (medium)
0.27 (low)


Standard 110/120 U.S. Outlet


Polarized Type A Plug

CSA Approved:



High Speed - 65 decibels
Medium Speed - 56 decibels
Low Speed - 46 decibels

Filtration Level:

> 99.99% at 0.1 micron

Bacterial Filtration Efficiency (BFE):



Lifetime Perpetual

For more information or to get a quote for your school, please contact:

Chanda Patterson
National Account Manager
6500 East Warren Ave
Detroit, MI 48207